from handler block.
* Source/NSColor.m: initWithCoder: retain autoreleased instances
of NSColor to prevent double release when the pool is cleared.
* Source/NSControl.m: initWithCoder: retain cell to prevent
double release when the pool is cleared.
* Source/NSFont.m: initWithCoder: retain autoreleased instances
of NSFont to prevent double release when the pool is cleared.
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@23340 72102866-910b-0410-8b05-ffd578937521